mileage 30000 Automatic i shift gear for reverse or drive, face jolting motion

Dear Sir, Many thanks for your kind reply yesterday, Please guide me on following; The supply voltage of the control unit is too low. (Battery Voltage 14.41V) Control unit N10/2 (Rear SAM control unit with fuse and relay module) is not transmitting data on the CAN bus. Control Unit A1 (Instrument cluster is not transmitting data on the CAN bus. Does i have to have to change mission sensor?for this purpose have to dismantling the whole mission? Please guide me it is serious problem or minor?

I can't tell you what should be changed, the vehicle needs further diagnosis. There has to be a reason the A1 AND the N10/2 aren't getting signal. This might just be field mice chewing on wires. Is it a problem? yes. The rear SAM depending on model can control everything from your trunk release to turn signals etc. Have it diagnosed and find why you have no canbus connection and low voltage. Look in the sides of the trunk, behind the wheel well covers and see if you've got signs of wildlife ...